56227320402 has 32 divisors (see below), whose sum is σ = 125287962624. Its totient is φ = 16676058000.

The previous prime is 56227320397. The next prime is 56227320421. The reversal of 56227320402 is 20402372265.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9059974 + ... + 9066177.

It is an arithmetic number, because the mean of its divisors is an integer number (3915248832).

Almost surely, 2^56227320402 is an apocalyptic number.

56227320402 is an abundant number, since it is smaller than the sum of its proper divisors (69060642222).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56227320402 is a wasteful number, since it uses less digits than its factorization.

56227320402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18126214.

The product of its (nonzero) digits is 40320, while the sum is 33.

Adding to 56227320402 its reverse (20402372265), we get a palindrome (76629692667).

The spelling of 56227320402 in words is "fifty-six billion, two hundred twenty-seven million, three hundred twenty thousand, four hundred two".